revC1: increase mounting hole size from 3.2mm to 3...
by electronic_eel 6 years 2 months
revC1: increase mounting hole size from 3.2mm to 3.5mm, add courtyard space around

- 3.2mm is the standard mounting hole size for M3 screws. But this requires tight
tolerances that sometimes are difficult to achieve with hobbyist tools. 3.5mm
allows for more tolerance

- a M3 washer has 7mm outer diameter. A 3mm screw+washer can be offset 0.5mm in a
3.5mm hole -> 8mm space necessary around the center of the hole. Add 1mm
clearance + tolerance around gives a 10mm diameter courtyard keepout zone

- change to a pad style with small vias in it because the vias slightly increase
the adhesion of the copper to the FR4 material. I think it also looks nice.
revC1: Updated part information and datasheet link...
by Wen Myers 6 years 2 months
revC1: Updated part information and datasheet links

- Added resistor network datasheet/part number
- Updated blue, white, pink LED datasheet/part numbers
- Updated capacitor datasheets/part numbers
- Updated resistor part numbers
- Added MPN/Mfg fields for
* PCA6408APW
* SN74LVC1T45DRL
* ATECC508A
* MG2040
* ESD5Z5.0T1G
- Added information for ferrite bead (600 ohm jellybean)
- Fixed typo (MG2048 -> MG2040)
revC1: add 1V2 testpoint to the rear
by Hector Martin 6 years 2 months
revC1: add 1V2 testpoint to the rear

Also fix some testpoint value tags
revC1: add protection resistor to FPGA Sync pin
by Hector Martin 6 years 2 months
revC1: add protection resistor to FPGA Sync pin

Closes: #125
Closes: #126
Add ESD protection diodes for the AUX header too
by electronic_eel 6 years 2 months
revC1: simplify a trace
by Hector Martin 6 years 2 months
revC1: fix USB testpoint silkscreen/fab
by Hector Martin 6 years 2 months
revC1: add USB testpoints to the rear
by Hector Martin 6 years 2 months
revC1: move J5 reference away from mounting screw
by Hector Martin 6 years 2 months
revC1: fix U32 reference size again.
by Hector Martin 6 years 2 months
revC1: fix U32 reference size again.

Derp.
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